Stat 365: Statistical Communication
Today we will…
“What do you notice? What do you wonder?”
“What new information did you just learn?”
“What do you think this graph is about? Why?”
“What would you mark along the axes?”
gestalt = form or pattern
Gestalt philosophy: “The whole is other than the sum parts” -Kurt Koffka
Gestalt principals: Predictable ways by which we organize sensory information.
| Effect | Graphs |
|---|---|
| Enclosure | Facets |
| Connection | Lines |
| Proximity | White space |
| Similarity | Color/shape |
“An understanding of what is processed pre-attentively is probably the most important contribution that visual science can make to the data visualization” (Ware, 2004, p. 19)
Color (hue)
Orientation
Intensity
Clustering
Size
Length
and more!
The following are the 10 elementary tasks in Figure 1, ordered from most to least accurate:
Know how we perceive groups
Know that we perceive some groups before others
Design to facilitate and emphasize the most important comparisons
Client Question
Do historical trends of full-time weekly median price charged for family child vary based on development stage in the three given California counties?
Consultant Questions
What are the elemental groupings? (What belongs together?)
How do we design for effective emphasis?
Do historical trends of full-time weekly median price charged for family child vary based on development stage in the three given California counties?
Most elemental
Least elemental
Do historical trends of full-time weekly median price charged for family child vary based on development stage in the three given California counties?
1
R.Rmd fig.alt =
.qmd #| fig-alt:
BrailleR::VI(my_plot)This is an untitled chart with no subtitle or caption.
The chart is comprised of 3 panels containing sub-charts, arranged horizontally.
The panels represent different values of county_name.
Each sub-chart has x-axis 'Year' with labels 2008, 2010, 2012, 2014, 2016 and 2018.
Each sub-chart has y-axis 'Weekly Median Childcare Cost ($)' with labels 150, 200, 250 and 300.
There is a legend indicating colour is used to show Development
Stage, with 2 levels:
infant shown as brilliant blue colour and
toddler shown as deep orange yellow colour.
There is a legend indicating shape is used to show Development
Stage, with 2 levels:
infant shown as solid circle shape and
toddler shown as solid triangle shape.
Each sub-chart has 2 layers.
Panel 1 represents data for county_name = Orange County.
Layer 1 of panel 1 is a set of 22 points of which about 100% can be seen.
Layer 2 of panel 1 is a set of 2 lines.
Line 1 connects 11 points.
This line has colour brilliant blue which maps to Development Stage = infant.
Line 2 connects 11 points.
This line has colour deep orange yellow which maps to Development Stage = toddler.
Panel 2 represents data for county_name = San Francisco County.
Layer 1 of panel 2 is a set of 22 points of which about 100% can be seen.
Layer 2 of panel 2 is a set of 2 lines.
Line 1 connects 11 points.
This line has colour brilliant blue which maps to Development Stage = infant.
Line 2 connects 11 points.
This line has colour deep orange yellow which maps to Development Stage = toddler.
Panel 3 represents data for county_name = San Luis Obispo County.
Layer 1 of panel 3 is a set of 22 points of which about 100% can be seen.
Layer 2 of panel 3 is a set of 2 lines.
Line 1 connects 11 points.
This line has colour brilliant blue which maps to Development Stage = infant.
Line 2 connects 11 points.
This line has colour deep orange yellow which maps to Development Stage = toddler.
Data Narrative Visualization
One-number Story
Read CwD 7.1 - 7.5